A156645 - cp's OEIS frontend

A156645 Triangle T(n, k, m) = b(n,m)/(b(k,m)*b(n-k,m)), where b(n, k) = Product_{j=1..n} (1 - ChebyshevT(j, k+1)^2), b(n, 0) = n!, and m = 2, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	36
5	1
6	1
7	1225
8	1225
9	1
10	1
11	41616
12	1416100
13	41616
14	1
15	1
16	1413721
17	1634261476
18	1634261476
19	1413721
20	1
21	1
22	48024900
23	1885939157025
24	64069586905104
25	1885939157025
26	48024900
27	1
28	1
29	1631432881
30	2176372249076025
31	2511659716192658889
32	2511659716192658889
33	2176372249076025
34	1631432881
35	1

[1, 1, 1, 1, 36, 1, 1, 1225, 1225, 1, 1, 41616, 1416100, 41616, 1, 1, 1413721, 1634261476, 1634261476, 1413721, 1, 1, 48024900, 1885939157025, 64069586905104, 1885939157025, 48024900, 1, 1, 1631432881, 2176372249076025, 2511659716192658889, 2511659716192658889, 2176372249076025, 1631432881, 1]

cp's OEIS Frontend

A156645 Triangle T(n, k, m) = b(n,m)/(b(k,m)*b(n-k,m)), where b(n, k) = Product_{j=1..n} (1 - ChebyshevT(j, k+1)^2), b(n, 0) = n!, and m = 2, read by rows.

Table of values

List of values